Take a leisurely ride on a 1906 cable car or a 1907 steam locomotive.

Peek inside Howard Hughes' garage at this Hollywood-themed art installation.

A beautiful little museum hidden away in the heart of Barcelona holds a treasure trove of Ancient Egyptian artifacts

The lantern carried by the infamous Guy Fawkes when he was arrested while attempting to blow the houses of Parliament and the King of England to smithereens

This historic timepiece was a popular meeting place for romantic rendezvous in the 1960s.

One of the oldest adobe structures in Northern California.

On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

Preserved behind glass, the ruins of a medieval building used to store human remains.

One of London's oldest houses contains a mixture of both old and modern features.

A bridge that has seen many reiterations over its lifetime.

If you fly into Edinburgh Airport, it's possible to spot this prehistoric site without even getting off the plane.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

Hidden behind a YMCA stands the remains of a ceremonial site that dates back hundreds of years, whose ground is still considered sacred to many Hawaiians.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

A Victorian-style home known as the “Castle on the Hill.”

At the edge of the high desert, California's second-largest natural lake is home to a unique subspecies of trout adapted to its alkaline waters.

On a hill overlooking Loch Trool, a granite boulder marks the site where Robert the Bruce, King of Scotland, defeated an English army.

This unusually-named reservoir found a second life as a nature preserve.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

A relic of Victorian grandeur hides beneath a busy South London road.

The plunge pool is a surviving relic of a rowdy royal residence.

The commemorative stone column conceals a secret laboratory.

Behind one of the world's most impenetrable vaults is a massive collection of retail silver.